Key fob



FIG. 1 is left side elevational view of a key fob showing my new design;

FIG. 2 s a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a perspective view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a rear elevational view thereof; and

FIG. 7 is a bottom plan view thereof.

The ornamental design for a key fob, substantially as shown.